Mad Rock - Mountain (Blue/Grey) - Men's: Mad Science on ice! And rock!; This boot will increase your speed and take you to more challenging moves because the lightweight, waterproof Mountain outperforms any mixed climbing boot. Innovative strap cuff ankle creates the perfect tension for ice. The low toe rand gets your toes jammed into those cracks tightly and the smooth hardware-free forefront keeps you there. Super high rand edges like a rock shoe. Kevlar polyester upper will completely seal out water.